WO2020230403A1 - 自動分析装置 - Google Patents
自動分析装置 Download PDFInfo
- Publication number
- WO2020230403A1 WO2020230403A1 PCT/JP2020/007629 JP2020007629W WO2020230403A1 WO 2020230403 A1 WO2020230403 A1 WO 2020230403A1 JP 2020007629 W JP2020007629 W JP 2020007629W WO 2020230403 A1 WO2020230403 A1 WO 2020230403A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle
- cleaning
- reservoir
- height
- automatic analyzer
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1004—Cleaning sample transfer devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00594—Quality control, including calibration or testing of components of the analyser
- G01N35/00712—Automatic status testing, e.g. at start-up or periodic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/025—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations having a carousel or turntable for reaction cells or cuvettes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/08—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1095—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices for supplying the samples to flow-through analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
- G01N2035/0401—Sample carriers, cuvettes or reaction vessels
- G01N2035/0437—Cleaning cuvettes or reaction vessels
Definitions
- the present invention relates to an automatic analyzer.
- Some automatic analyzers that perform qualitative and quantitative analysis of specific components in biological samples such as blood and urine are equipped with a flow cell type detector.
- the flow cell type detector sucks the reaction solution obtained by reacting the sample and the reagent into the flow cell via the suction nozzle, and detects specific biological components, chemical substances, etc. contained in the sucked reaction solution by the detector.
- the suction nozzle of the flow cell type detector is always fixed in place.
- the vibration of the mechanism is transmitted to the flow path of the flow cell type detector via the suction nozzle, which may reduce the detection accuracy of the detector.
- the suction nozzle is rotated or moved up and down, the flow path to the flow cell becomes longer, which increases the overhead required for suction and may increase the analysis cycle time.
- Patent Document 1 discloses an automatic analyzer having a detection unit in which a suction nozzle of a flow cell type detector is fixed.
- Patent Document 1 provides a liquid transport mechanism for holding various liquids such as a reaction liquid, a reaction auxiliary liquid, and a cleaning liquid.
- the liquid transport mechanism has a container holding member for holding these various liquids and a driving mechanism for rotating or moving the container holding member up and down.
- the drive mechanism rotates and moves the container holding member up and down so that it can be inserted into and removed from the container containing a predetermined liquid with respect to the suction nozzle fixed to the detector.
- a reaction auxiliary liquid container for storing the reaction auxiliary liquid, a cleaning liquid container for storing the cleaning liquid, a cleaning tank for cleaning the suction nozzle, and the like are arranged in the container holding member of the liquid transport mechanism of Patent Document 1.
- a reaction auxiliary liquid pipe for supplying the reaction auxiliary liquid and a cleaning liquid pipe for supplying the cleaning liquid are provided, and these pipes are held by a container holding member and a drive mechanism.
- the structure of the liquid transport mechanism can be simplified, the structure of the cleaning tank is also simplified.
- a mechanism for sufficiently cleaning the suction nozzle such as providing a plurality of discharge ports in the cleaning tank. It becomes difficult to specially provide. The suction nozzle needs to be properly cleaned even in a cleaning tank having a simplified structure.
- the automatic analyzer includes a flow cell detector, a nozzle connected to the flow cell detector by a flow path, and a table and a table drive mechanism for rotating or moving the table up and down.
- the cleaning water discharge port which has a reservoir provided with a cleaning tank and a cleaning tank arranged on a table, the position of the nozzle is fixed, and the cleaning water for cleaning the nozzle is discharged, is relative to the central axis of the nozzle. It is fixed so as to discharge the washing water at an angle ⁇ with respect to the vertical plane, and the upper side wall of the washing tank is connected to the upper discharge part on the side facing the discharge port provided in the reservoir and faces the upper discharge part. On the side, it is connected to the spatula-shaped part that protrudes toward the outside of the washing tank.
- FIG. 1 shows the overall configuration of the automatic analyzer according to this embodiment.
- a rack transfer unit 120 for storing the rack 101 is connected to the analyzer 100, and the rack transfer unit 120 is provided with a power-on instruction unit 121 and a power-off instruction unit 122 of the automatic analyzer.
- the power-on instruction unit 121 and the power-off instruction unit 122 are buttons that can be input by the operator.
- the display unit of the control computer 123 that controls the operation of each mechanism of the automatic analyzer may be provided with an input unit for instructing power-on or power-off.
- a sample container 102 for holding a sample is installed in the rack 101, and the rack 101 is moved to a sample dispensing position in the vicinity of the sample dispensing nozzle 103 by the rack transport line 117.
- a plurality of reaction vessels 105 can be installed in the incubator 104, and the reaction vessels 105 installed in a circumferential shape are moved to predetermined positions by rotational motion.
- the transport mechanism 106 is movable in three directions of the X-axis, the Y-axis, and the Z-axis, and is located at a predetermined position of the holding member 107, the reaction vessel stirring mechanism 108, the waste hole 109, the sample dispensing chip mounting position 110, and the incubator 104. Move the range and transport the sample dispensing chip or reaction vessel.
- a plurality of unused reaction vessels and sample dispensing chips are installed on the holding member 107.
- the transport mechanism 106 moves above the holding member 107, descends to grip an unused reaction vessel, then rises, further moves above a predetermined position of the incubator 104, and descends to install the reaction vessel 105. ..
- the transport mechanism 106 moves above the holding member 107, descends to grip the unused sample dispensing tip, then rises, moves above the sample dispensing tip mounting position 110, and descends. Install the sample dispensing tip.
- the sample dispensing nozzle 103 can rotate and move up and down, and after rotating and moving above the sample dispensing chip mounting position 110, it descends and press-fits the sample dispensing chip into the tip of the sample dispensing nozzle 103. And attach it.
- the sample dispensing nozzle 103 equipped with the sample dispensing tip moves above the sample container 102 placed on the transport rack 101 and then lowers to suck a predetermined amount of the sample held in the sample container 102.
- the sample dispensing nozzle 103 that sucks the sample moves above the incubator 104 and then descends to discharge the sample into the unused reaction vessel 105 held in the incubator 104.
- the sample dispensing nozzle 103 moves above the disposal hole 109 and discards the used sample dispensing tip from the disposal hole 109.
- a plurality of reagent containers 118 are installed on the reagent disk 111.
- a reagent disc cover 112 is provided on the upper part of the reagent disc 111, and the inside of the reagent disc 111 is kept at a predetermined temperature.
- a reagent disc cover opening 113 is provided in a part of the reagent disc cover 112.
- the reagent dispensing nozzle 114 can rotate and move up and down, and after rotating and moving above the opening 113 of the reagent disk cover 112, it descends, and the tip of the reagent dispensing nozzle 114 becomes a reagent in a predetermined reagent container. Immerse and aspirate a predetermined amount of reagent. Next, after the reagent dispensing nozzle 114 is raised, it rotates and moves above a predetermined position of the incubator 104 to discharge the reagent into the reaction vessel 105.
- the reaction vessel 105 from which the sample and the reagent are discharged is moved to a predetermined position by the rotation of the incubator 104, and is conveyed to the reaction vessel stirring mechanism 108 by the transfer mechanism 106.
- the reaction vessel stirring mechanism 108 stirs and mixes the sample and the reagent in the reaction vessel by applying a rotary motion to the reaction vessel.
- the reaction vessel 105 after stirring is returned to a predetermined position of the incubator 104 by the transfer mechanism 106.
- the reaction vessel transport mechanism 115 that transfers the reaction vessel 105 between the incubator 104 and the detection unit 116 grips and ascends the reaction vessel 105 on the incubator 104, and conveys the reaction vessel 105 to the detection unit 116 by rotational movement. To do.
- the reaction vessel 105 is analyzed by the detection unit 116.
- the reaction vessel 105 sucked by the reaction solution in the detection unit 116 is returned onto the incubator 104 again by the reaction vessel transport mechanism 115, and is moved to a predetermined position by the rotation of the incubator 104.
- the transport mechanism 106 moves from the incubator 104 above the sucked reaction vessel, descends to grip the sucked reaction vessel, then rises, moves above the waste hole 109, and sucks the reaction from the waste hole. Discard the container.
- FIG. 2A shows a schematic configuration of a flow cell type detector of the detection unit 116 and its peripheral mechanism.
- the detection unit 116 has, as its main structure, a suction nozzle 201 for sucking or discharging various liquids, a flow cell detector 202 for detecting an object to be measured, and a pressure difference for sucking or discharging various liquids. It has a syringe 203, a system water supply pump 204 connected to the syringe 203, a drain flow path 205 for discharging liquid and the like, and a drain tank 206 for storing and regularly replacing the discharged liquid, and these are provided by the flow path. It is connected.
- the suction nozzle 201 is connected to the inlet of the flow cell detector 202, and the outlet of the flow cell detector 202 is connected to the connecting branch portion 211 of the syringe 203 via the first valve 210.
- the branch portion 211 is connected to the drain flow path 205 via the second valve 214, and an atmosphere opening portion 217 is installed between the second valve 214 and the drain flow path 205.
- the suction nozzle 201 is always fixed at a fixed position. Therefore, below the suction nozzle 201, a reservoir 230 for transporting various liquid containers sucked by the suction nozzle 201 to the suction position of the suction nozzle 201 is installed.
- the reservoir 230 has a table drive mechanism 232 that drives the table 231 and the table 231 and holds them in a specific position.
- the table drive mechanism 232 rotates the table 231 around the central axis C or moves it up and down.
- the reaction container 105, the liquid container 241 for storing the liquid (reaction auxiliary liquid, etc.) sucked by the suction nozzle 201, the washing tank 242 for washing the suction nozzle 201, and the like are arranged on the table 231.
- the liquid container 241 and the cleaning tank 242 have a discharge unit for overflowing and discharging the liquid.
- the liquid overflowing from the discharge portion of the liquid container 241 or the cleaning tank 242 is discharged from the discharge port through the flow path 233 provided along the central axis C of the table drive mechanism 232.
- the supply port 240 for supplying various liquids (for example, diluent, cleaning solution, reagent, system water, etc.) to the liquid container 241 and the cleaning tank 242 is provided at a fixed position.
- the table 231 can accommodate a plurality of liquid containers 241.
- a plurality of supply ports 240 are also provided. Therefore, the reservoir 230 drives the table 231 by the table drive mechanism 232 and holds it at a specific position to supply various liquids to the liquid container 241, suck or discharge the suction nozzle 201, and clean the suction nozzle 201. ..
- FIG. 2B shows a perspective view of the reservoir 230 (part).
- the reaction vessel holding portion 234 is provided on the table 231 and the reaction vessel 105 is placed on the table 231.
- two liquid containers 241a and 241b and a cleaning tank 242 are arranged on the table 231.
- Both the liquid container 241 and the cleaning tank 242 are resin containers, and are detachably placed at predetermined positions on the table 231.
- the table 231 is provided with a special cleaning liquid container installation portion 235.
- the special cleaning liquid is a cleaning liquid used for cleaning the flow cell detector 202 and the like during maintenance and the like, and the special cleaning liquid container can be placed at the position when the special cleaning liquid is used.
- FIG. 3 shows a state in which the suction nozzle 201 is sucking the reaction solution from the reaction vessel 105.
- the reservoir 230 rotates the table 231 to convey the reaction vessel 105 to the lower part of the suction nozzle 201, and raises the table 231 as it is.
- the suction nozzle 201 is immersed in the reaction vessel 105.
- FIG. 3 shows this state.
- the reaction solution is sucked from the suction nozzle 201, and the reaction solution is sent to the detector.
- the suction nozzle 201 sucks the reaction liquid, it comes into contact with the reaction liquid up to the position x. Therefore, it is necessary to wash up to the height h1 from the lower end of the suction nozzle to the position x.
- each of the liquid containers 241 has a discharge unit 301, and the unnecessary liquid is discharged from the discharge unit 301 to the flow path 233 by overflowing.
- the discharge portion 301 is provided so as to be connected to the upper part of the side wall of the liquid container 241.
- a tubular member 302 is provided so as to face the discharge portion 301, and the overflowed drainage flows through the tubular member 302 into the flow path 233.
- the cleaning tank 242 has almost the same structure, but the cleaning tank 242 will be described later.
- FIG. 4 shows a state in which the reservoir 230 rotates the table 231 and conveys the cleaning tank 242 to the lower part of the suction nozzle 201.
- FIG. 4 shows a cleaning water discharge port 411 that discharges cleaning water (system water, pure water) to the cleaning tank 242 together with the suction nozzle 201.
- Both the suction nozzle 201 and the washing water discharge port 411 are fixedly arranged, and the positional relationship between the two does not change.
- ⁇ be the angle at which the cleaning water is discharged to the suction nozzle 201 with respect to a plane perpendicular to the central axis of the suction nozzle 201.
- the control computer raises the washing tank 242 to a predetermined position by the reservoir 230 while discharging the washing water from the washing water discharge port 411 at an angle ⁇ .
- the timing for starting the discharge of the washing water may be after the table 231 is raised, but in order to shorten the time required for washing, as long as the washing water does not scatter beyond the washing tank 242, as much as possible.
- the discharge of washing water is started at an early timing.
- the wash water discharged from the wash water discharge port 411 ideally intersects the suction nozzle 201 at the position w (that is, the position w is a plane perpendicular to the central axis of the nozzle from the wash water discharge port 411). This is the intersection of the virtual line extended at an angle ⁇ and the suction nozzle 201).
- the height from the lower end of the suction nozzle to the position w is defined as the height h2.
- the cleaning tank 242 is provided with an upper discharge unit 401 for discharging the overflowed cleaning water, a lower discharge unit 402 for discharging the cleaning water from the lower part of the cleaning tank 242, and a spatula-shaped portion 403.
- the upper part of the side wall of the washing tank 242 is connected to the upper discharge part 401, and the upper part of the side wall is connected to the spatula-shaped part 403 on the side facing the upper discharge part 401.
- the lower discharge portion 402 is provided in the lower part of the side wall on the same side as the upper discharge portion 401.
- the upper discharge portion 401 is positioned so as to face the tubular member 302.
- the spatula-shaped portion 403 is provided so as to project toward the outside of the cleaning tank 242, and forms a U-shaped groove 404 (the side surface of the cleaning tank 242 as viewed from the direction of the arrow in FIG. 2B in the drawing). The figure is shown).
- the U-shaped groove 404 may be a V-shaped groove.
- FIG. 5 shows the case where the reservoir 230 is in the nozzle cleaning position.
- the nozzle cleaning position means a position where the table 231 inserts the suction nozzle 201 into the cleaning tank 242 so that the suction nozzle 201 can be cleaned.
- the angle formed by the inclined portion of the spatula-shaped portion 403 with respect to the plane perpendicular to the central axis of the spatula-shaped portion 201 is set to ⁇ , and the extension line of the inclined portion of the spatula-shaped portion 403 and the intersection of the suction nozzle 201. Is the position y.
- the height from the lower end of the suction nozzle to the position y is defined as the height h3.
- the cleaning water discharged from the cleaning water discharge port 411 is sent to the suction nozzle 201 by the spatula shape portion 403.
- the spatula-shaped portion 403 of the cleaning tank 242 is located vertically below the cleaning water discharge port 411.
- the suction nozzle 201 can be immersed in cleaning water for cleaning. This situation is shown in FIG.
- the lower discharge part 402 whose drainage flow rate is adjusted by the inner diameter d of the lower discharge part 402 and the inclined bottom surface 601 connected to the lower discharge part 402 is washed.
- the inside of the washing tank 242 is filled with the washing water, and the water overflows from the upper discharge portion 401.
- the height of the overflow surface z determined by the upper discharge portion 401 from the lower end of the suction nozzle when the reservoir 230 is in the nozzle cleaning position is height h4, height h4> height h1.
- the amount of washing water discharged from the washing water discharge port 411 per unit time is defined as the amount of water in which the washing water stored in the washing tank 242 overflows from the upper discharge portion 401, and the suction nozzle 201 is set in the washing tank.
- the cleaning end operation of the suction nozzle 201 will be described with reference to FIG. 7.
- the suction nozzle 201 is provided with cleaning water without a risk of residual reaction solution. The cleaning can be continued and the risk of contamination can be further reduced.
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- General Health & Medical Sciences (AREA)
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- Analytical Chemistry (AREA)
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/603,725 US20220196695A1 (en) | 2019-05-15 | 2020-02-26 | Automatic analyzer |
JP2021519270A JP7281540B2 (ja) | 2019-05-15 | 2020-02-26 | 自動分析装置 |
EP20805998.0A EP3971583B1 (de) | 2019-05-15 | 2020-02-26 | Automatische analysevorrichtung |
CN202080028933.5A CN113711055B (zh) | 2019-05-15 | 2020-02-26 | 自动分析装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019-091875 | 2019-05-15 | ||
JP2019091875 | 2019-05-15 |
Publications (1)
Publication Number | Publication Date |
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WO2020230403A1 true WO2020230403A1 (ja) | 2020-11-19 |
Family
ID=73289541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2020/007629 WO2020230403A1 (ja) | 2019-05-15 | 2020-02-26 | 自動分析装置 |
Country Status (5)
Country | Link |
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US (1) | US20220196695A1 (de) |
EP (1) | EP3971583B1 (de) |
JP (1) | JP7281540B2 (de) |
CN (1) | CN113711055B (de) |
WO (1) | WO2020230403A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112881367B (zh) * | 2019-11-29 | 2024-02-27 | 深圳市新产业生物医学工程股份有限公司 | 清洗模块及具有其的样本分析仪和清洗方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004223352A (ja) * | 2003-01-21 | 2004-08-12 | Tosoh Corp | 洗浄装置 |
WO2013125536A1 (ja) * | 2012-02-22 | 2013-08-29 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
WO2016136290A1 (ja) * | 2015-02-24 | 2016-09-01 | 株式会社日立ハイテクノロジーズ | 自動分析装置および液体容器 |
JP2017009299A (ja) * | 2015-06-17 | 2017-01-12 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
WO2017168973A1 (ja) * | 2016-03-28 | 2017-10-05 | 株式会社 日立ハイテクノロジーズ | 自動分析装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008224245A (ja) | 2007-03-08 | 2008-09-25 | Olympus Corp | 洗浄装置および自動分析装置 |
JP5489283B2 (ja) * | 2010-05-24 | 2014-05-14 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
JP6517565B2 (ja) * | 2015-03-30 | 2019-05-22 | 株式会社日立ハイテクノロジーズ | 分注ノズル洗浄方法および自動分析装置 |
JP6442378B2 (ja) | 2015-07-23 | 2018-12-19 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
-
2020
- 2020-02-26 EP EP20805998.0A patent/EP3971583B1/de active Active
- 2020-02-26 WO PCT/JP2020/007629 patent/WO2020230403A1/ja unknown
- 2020-02-26 US US17/603,725 patent/US20220196695A1/en active Pending
- 2020-02-26 CN CN202080028933.5A patent/CN113711055B/zh active Active
- 2020-02-26 JP JP2021519270A patent/JP7281540B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004223352A (ja) * | 2003-01-21 | 2004-08-12 | Tosoh Corp | 洗浄装置 |
WO2013125536A1 (ja) * | 2012-02-22 | 2013-08-29 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
WO2016136290A1 (ja) * | 2015-02-24 | 2016-09-01 | 株式会社日立ハイテクノロジーズ | 自動分析装置および液体容器 |
JP2017009299A (ja) * | 2015-06-17 | 2017-01-12 | 株式会社日立ハイテクノロジーズ | 自動分析装置 |
WO2017168973A1 (ja) * | 2016-03-28 | 2017-10-05 | 株式会社 日立ハイテクノロジーズ | 自動分析装置 |
Non-Patent Citations (1)
Title |
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See also references of EP3971583A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP3971583A1 (de) | 2022-03-23 |
US20220196695A1 (en) | 2022-06-23 |
CN113711055B (zh) | 2024-06-25 |
EP3971583A4 (de) | 2023-02-15 |
JP7281540B2 (ja) | 2023-05-25 |
EP3971583B1 (de) | 2024-05-01 |
CN113711055A (zh) | 2021-11-26 |
JPWO2020230403A1 (de) | 2020-11-19 |
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